CN214142939U - Washing machine and LC detection device applied to tractor - Google Patents

Abstract

The utility model discloses a washing machine and be applied to LC detection device of tractor, include: clutch and tractor, clutch are connected with the driving lever, and the tractor is used for pulling the driving lever in order to switch washing machine's washing mode, and the tractor is provided with LC detection device, and LC detection device is used for detecting the tractor and pulls the distance, the utility model discloses a tractor precision is high, and simple structure and reliable and stable, it is controllable to pull the distance, just the utility model discloses a tractor not only relates to the washing machine field, can use to any process that needs to pull.

Description

Washing machine and LC detection device applied to tractor

Technical Field

The utility model relates to a washing machine technical field especially relates to a washing machine and be applied to LC detection device of tractor.

Background

The washing machine is a cleaning appliance for washing clothes by using mechanical action generated by electric energy, more and more people use the washing machine to wash clothes, bedding and other large articles, time and labor are saved, and the washing machine is becoming an essential household appliance in the life of people. Among them, the retractor is an important part for switching the operation state of the washing machine.

The currently commonly used retractor has the following characteristics:

1. the single-stroke tractor has a single stroke, keeps tension when the tractor is powered on, disappears tension when the tractor is powered off, cancels the traction, and has the most basic tractor with a small motor and a transmission gear which are matched to move inside, so the application range is single;

2. the contact type multi-stroke tractor has a plurality of traction strokes, a plurality of input ends respectively control the plurality of strokes, the traction is cancelled when the tension is kept after electrification and the tension disappears at the moment of power failure, a small motor, a transmission gear and a plurality of contacts are arranged inside the contact type multi-stroke tractor, and the current traction stroke is judged through the contacts; the input ends are influenced by strokes more, the more the input ends are, the more the structure is complex, the worse the reliability is, the traction force disappears during power failure, the traction force is quickly restored to the initial position, and the traction device is not suitable for the situations needing slow restoration, and a double-stroke tractor is commonly used;

3. the cam type multi-stroke tractor comprises a plurality of traction strokes, two input ends and a zero-crossing detection end, wherein an electrified motor is used for carrying out unidirectional traction, power-off traction is kept, an initial position is detected through zero, and the traction position is judged through traction time; the tractor is greatly influenced by traction load, the traction speed is low under the condition of large load, the traction speed is high under the condition of small load, and the traction distance error is large due to the influence of the precision of the tractor, and meanwhile, the tractor cannot be detected when the tractor is not pulled or is excessively large or small.

Disclosure of Invention

In some embodiments of the present application, a washing machine is provided, the washing machine comprises a box body, an outer barrel, an inner barrel and a tractor, the tractor of the present application is suitable for any place needing traction, including a drum washing machine, a pulsator washing machine, a dishwasher and the like, and the tractor of the present application has high precision, simple structure, stability and reliability and controllable traction distance.

In some embodiments of this application, improved the tractor, the tractor is provided with L (inductance ) C (capacitance) detection device and controller, and this application detects output frequency through setting up LC detection device and can detect the traction distance, through the controller control break-make electricity can control the traction distance, realizes real-time feedback traction stroke, real-time control traction distance's effect.

In some embodiments of this application, improved the tractor, the traction wheel of tractor sets up to spiral case formula cam structure, and when the cam rotated the traction shaft drives when the driving lever removed, the transmission shaft drives the motion iron core is in the inside removal of coil, when the motion iron core removed, change the inductance value of coil to change LC circuit's output frequency, will the amount of movement of motion iron core changes LC circuit's output frequency into, and passes through the controller detects output frequency and can obtain the traction distance, through the controllable distance of pulling is promptly to controller control break-make electricity, thereby realizes simple structure and reliable and stablely, the controllable effect of traction distance.

In some embodiments of the present application, there is provided a washing machine including: the washing machine comprises a clutch and a tractor, wherein the clutch is connected with a shifting rod, the tractor is used for dragging the shifting rod to switch the washing mode of the washing machine, and the tractor is provided with an LC detection device which is used for detecting the traction distance of the tractor.

In some embodiments of the present application, the retractor further comprises: casing and traction motor, traction motor installs on the casing, just traction motor's motor shaft wears to locate the casing, by traction motor is right the tractor provides power.

In some embodiments of the present application, the retractor further comprises: traction portion and transmission portion, traction portion is provided with the traction wheel and pulls the axle, the rotatable installation of traction wheel is in on the casing, pull the axle connect in the driving lever, by traction portion pulls the driving lever motion, transmission portion set up in traction portion with between the traction motor, just transmission portion cooperation connect in the traction wheel is used for the transmission traction motor's output torque arrives on the traction wheel

In some embodiments of the present application, the clutch further comprises: and the shifting end of the shifting lever is abutted against the connecting sleeve.

In some embodiments of the present application, an LC detection device applied to a retractor includes: the electric motor comprises a moving iron core, a capacitor and a coil, wherein one end of the moving iron core is connected with a transmission shaft, the transmission shaft is connected with the traction wheel, the capacitor is installed on the shell, the coil is connected in parallel with the capacitor, the moving iron core is arranged inside the coil, and the moving iron core moves inside the coil.

In some embodiments of the present application, the LC detection apparatus further comprises: the detection output end is arranged on the shell and electrically connected to the capacitor.

In some embodiments of the present application, the retractor further comprises: and the traction motor and the detection output end are electrically connected with the controller.

Drawings

Fig. 1 is a schematic view of a casing of a pulsator washing machine according to some embodiments of the present invention;

fig. 2 is a schematic view of a drum washing machine cabinet according to some embodiments of the present invention;

FIG. 3 is a schematic view of the installation of the retractor in accordance with certain embodiments of the invention;

FIG. 4 is a schematic illustration of the installation of the clutch in some embodiments of the present invention;

FIG. 5 is a schematic view of a retractor according to some embodiments of the invention;

fig. 6 is a schematic view of a retractor according to some embodiments of the invention;

FIG. 7 is one of the operational illustrations of the retractor of some embodiments of the invention;

FIG. 8 is one of the operational illustrations of the retractor of some embodiments of the invention;

reference numerals:

100. a box body; 110. an outer tub; 120. an inner barrel; 130. fixing a carrier; 140. a clutch; 150. a deflector rod; 200. a retractor; 210. a housing; 220. a traction motor; 230. a traction part; 231. a traction wheel; 232. a traction shaft; 240. a transmission section; 300. an LC detection device; 310. a moving iron core; 311. a drive shaft; 320. a capacitor; 330. detecting an output end; 340. and a coil.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1-2, in accordance with some embodiments of the present application, there is provided a washing machine including: the box 100, box 100 is the box structure.

The cabinet 100 is a housing of the washing machine, and the cabinet 100 is used to mount working elements of the washing machine therein.

Further, a clutch is arranged in the box body 100, and the clutch is connected with a shift lever.

Referring to fig. 1 to 4, the washing machine further includes: an outer tub 110, the outer tub 110 being installed in the cabinet 100, and an inner tub 120 being installed inside the outer tub 110, a storage space for storing laundry being formed inside the inner tub 120 for storing the laundry.

Referring to fig. 1 to 4, the washing machine further includes: and a clutch 140, the clutch 140 being used to engage or disengage the power transmission.

The clutch 140 is disposed at the bottom of the outer tub 120, and the shift lever 150 is connected to the clutch 140.

In addition, the middle of the shift lever 150 is rotatably connected with the fixed carrier 130, and the shifting end of the shift lever 150 abuts against the connection sleeve.

The connecting sleeve is sleeved on the dehydration shaft, the connecting sleeve and the dehydration shaft are relatively fixed along the circumferential direction of the connecting sleeve, and the connecting sleeve can move relative to the dehydration shaft along the axial direction of the connecting sleeve.

Furthermore, the connecting sleeve is provided with a plurality of first clamping teeth arranged along the circumferential direction of the connecting sleeve at intervals and a plurality of second clamping teeth arranged along the circumferential direction of the connecting sleeve at intervals, and each first clamping tooth and each second clamping tooth extend along the axial direction of the connecting sleeve.

It should be noted herein that the washing machine further includes: and a dehydrating shaft rotatably disposed on the fixed carrier 130, extending in parallel with the central axis of the inner tub 120, and drivingly connected with the inner tub 120.

Furthermore, the dehydration shaft and the connecting sleeve can be connected through a spline or a flat key, so that the connecting sleeve and the dehydration shaft are relatively fixed along the circumferential direction of the connecting sleeve, and the connecting sleeve can move relative to the dehydration shaft along the axial direction of the connecting sleeve.

Referring to fig. 1 to 4, the washing machine further includes: and the driving device is used for providing driving force for the washing machine.

The driving device is disposed in the cabinet 100, and the driving device is connected to the bottom of the outer tub 110, and a driving point of the driving device is connected to a rotating part for transmitting a driving force of the driving device.

In addition, the driving device may have the following structure: the driving device comprises a rotating part (rotor) and a fixing part (stator), wherein the rotating part is of a shell structure, and the fixing part is arranged in the rotating part.

It should be noted that, in some embodiments of the present application, the fixing carrier 130 includes a fixing housing and a fixing frame connected to the fixing housing, the fixing housing includes an upper half housing and a lower half housing which are coupled together and fixedly connected, the upper half housing is fixedly connected to the bottom of the outer tub 110; the speed reducer is arranged in the fixed shell.

Referring to fig. 1 to 8, according to the retractor 200 in some embodiments of the present application, the retractor 200 is applied to a washing machine including a cabinet 100, an outer tub 110, an inner tub 120, and a clutch 140.

The retractor 200 is installed in the cabinet 100, applies force to the lever 150 by the retractor 200, and serves to retract the lever to switch the operating state of the washing machine.

The retractor 200 has a box shape, and the retractor 200 is composed of a housing 210, a traction motor 220, a traction part 230, a transmission part 240, and an LC detection device 300.

Referring to fig. 1-8, the retractor 200 includes: the housing 210, the housing 210 is a box-shaped housing 210.

The housing 210 is configured to house the traction motor 220, the traction wheel 231, and the transmission member.

The case 210 is disposed at the bottom of the outer tub 110.

Wherein, the casing 210 is provided with a traction motor 220, the traction motor 220 is used for providing power for the tractor 200, and a motor shaft of the traction motor 220 penetrates through the casing 210; the housing 210 is further provided with a traction part 230, the traction part 230 is composed of a traction wheel 231 and a traction shaft 232, the traction wheel 231 is disc-shaped, and the traction part 230 is used for drawing the shift lever 150 to move.

In some embodiments of the present application, a winding roller is further disposed on the output shaft of the traction motor 220, one end of the traction rope is connected to the winding roller, when the traction device 200 is started, the traction motor 220 drives the winding roller to rotate, and the traction rope is gradually wound onto the winding roller to draw the upper end of the shift lever 150.

Further, a transmission part 240 is disposed between the traction part 230 and the traction motor 220, and is used for transmitting the output torque of the traction motor 220 to the traction wheel 231.

It should be noted that in some embodiments of the present application, the retractor 200 can be used to pull the pulling rope in a short time when it is just started, and the pulling rope is easily broken, so as to avoid that the pulling rope is not broken by the retractor 200 when the retractor 200 is just started, the present application further provides a tension spring, a first end of the tension spring is connected to the upper end of the shift lever 150, and a second end of the tension spring is connected to the pulling rope. By arranging the tension spring between the traction rope and the shift lever 150, when the tractor 200 is just started, the tension spring can absorb the suddenly increased tension of the tractor 200 through deformation, so as to play a role in buffering, and prevent the traction rope from being broken by the suddenly increased tension of the tractor 200.

In addition, for the convenience of being connected between haulage rope and the extension spring, this application still is provided with the installation cover, and during the one end of haulage rope stretched into the installation cover, and was connected with the installation cover, the one end of extension spring articulates on the installation cover. Through setting up the installation cover, made things convenient for and be connected between extension spring and the haulage rope, improved the reliability of being connected between extension spring and the haulage rope.

Referring to fig. 1-8, the retractor 200 includes: LC detection device 300, LC detection device 300 is by moving iron core 310, electric capacity 320, coil 340 and detect output 330 and constitute.

The LC detection device 300 is used to detect a towing distance.

The LC detection device 300 is connected to the traction portion 230, one end of the moving core 310 is connected to the transmission shaft 311, the transmission shaft 311 is connected to the traction wheel 231, the capacitor 320 is installed on the housing 210, the coil is installed on the housing, and the coil is connected in parallel to the capacitor, wherein the moving core is disposed inside the coil, the cloud top core moves inside the coil, the detection output end 330 is disposed on the housing 210, and the detection output end 330 is electrically connected to the capacitor 320.

In addition, the LC detection device is also provided with a controller, the traction motor 220 and the detection output end 330 are electrically connected to the controller, the traction distance can be controlled by controlling the on-off of the controller, and the effects of real-time feedback of the traction stroke and real-time control of the traction distance are realized.

Referring to fig. 1-8, the principle of operation of the LC detection apparatus 300 in some embodiments of the present application: when the traction wheel 231 rotates, the traction shaft 232 drives the shifting lever 150 to move, the transmission shaft 311 drives the moving iron core 310 to move inside the coil 340, when the moving iron core 310 moves, the inductance of the coil 340 is changed, the output frequency of the LC circuit is changed, the moving amount of the moving iron core 310 is converted into the output frequency of the LC circuit, the traction distance can be obtained by detecting the output frequency through the controller, and the traction distance can be controlled by controlling the power on and power off through the controller.

Wherein, the drawing length L = R1 (1-cos theta) (1) after the cam rotates theta degrees;

the increment of the radius of the curve of the volute is as follows: Δ r = r2-r1= (a/2 pi) × θ (2);

the distance of iron core movement is the same as the increment of the radius of the curve of the volute: L1-L0= Δ r;

at this time, the inductance of the coil changes as follows: Δ L = f (Δ r) (3);

the resonant frequency output by the LC circuit in the initial state is: f =1/(2 pi √ (L0 ×) (4);

the resonance frequency output by the LC circuit after the rotation of the angle theta is as follows: f =1/(2 pi √ (L1 ×) (5);

the formula (1) to the formula (5) shows that the rotation angle theta and the output frequency f are in one-to-one correspondence, so that the motion position of the cam can be judged by detecting the output frequency.

In some embodiments, the retractor 200 of the present application is not only related to the field of washing machines, but can be applied to any process requiring retraction, and therefore, any device that is adapted to the retractor 200 of the present application is within the scope of the present application.

According to the first concept of the application, the tractor is suitable for any place needing traction, including a drum washing machine, a pulsator washing machine, a dish washing machine and the like, and the tractor is high in precision, simple in structure, stable and reliable, and controllable in traction distance.

According to the second conception of this application, the traction wheel of this application tractor sets up to spiral case formula cam structure, when the cam rotated, when pulling the axle and driving the driving lever and remove, the transmission shaft drove the motion iron core and removes at the coil is inside, when the motion iron core removed, change the inductance value of coil, thereby change the output frequency of LC circuit, change the output frequency of LC circuit into the amount of movement of motion iron core, and detect output frequency through the controller and can obtain the distance of pulling, through the steerable distance of pulling of controller control break-make electricity, thereby realize simple structure and reliable and stable, the controllable effect of distance of pulling.

According to the third concept of the application, because the tractor of the application is provided with the LC detection device and the controller, the traction distance can be obtained by setting the LC detection device to detect the output frequency, the traction distance can be controlled by controlling the on-off of the controller, and the effects of feeding back the traction stroke in real time and controlling the traction distance in real time are realized.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. A washing machine, characterized by comprising:

the clutch is connected with a deflector rod;

the traction device is used for drawing the deflector rod to switch the washing mode of the washing machine, and is provided with an LC detection device which is used for detecting the traction distance of the traction device.

2. The washing machine as claimed in claim 1, wherein the retractor further comprises:

a housing;

the traction motor is installed on the shell, a motor shaft of the traction motor penetrates through the shell, and the traction motor supplies power to the traction device.

3. The washing machine as claimed in claim 2, wherein the retractor further comprises:

the traction part is provided with a traction wheel and a traction shaft, the traction wheel is rotatably arranged on the shell, the traction shaft is connected with the deflector rod, and the deflector rod is pulled by the traction part to move;

the transmission part is arranged between the traction part and the traction motor, and the transmission part is connected with the traction wheel in a matching mode and used for transmitting the output torque of the traction motor to the traction wheel.

4. The washing machine as claimed in claim 1, wherein the clutch further comprises:

and the shifting end of the shifting lever is abutted against the connecting sleeve.

5. An LC detecting device applied to a retractor applied to a washing machine as claimed in claim 3, wherein the LC detecting device comprises:

one end of the moving iron core is connected with a transmission shaft, and the transmission shaft is connected with the traction wheel;

a capacitor mounted on the housing;

the coil is arranged on the shell and connected to the capacitor in parallel;

wherein the moving iron core is disposed inside the coil, and the moving iron core moves inside the coil.

6. The LC detection device for use in a retractor of claim 5, further comprising:

the detection output end is arranged on the shell and electrically connected to the capacitor.

7. The LC detection device for use in a retractor of claim 6, further comprising:

and the traction motor and the detection output end are electrically connected with the controller.

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